Bad domain in mails from WWW

[keff]

Hi,
I've installed Plesk 9.2.1 on Debian 4.0 (SMTP - postfix). Question:

now mails send directly from the website have domain such as @stock.ovh.net. On Plesk 8.6 all mails comings from @domain specific for the site. How to change it back?

Thanks for all reply

 

[keff]

I've changed /etc/mailname to proper hostname, rest is the problem in code of the specific website.